108409-21-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108409-21-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,4,0 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 108409-21:
(8*1)+(7*0)+(6*8)+(5*4)+(4*0)+(3*9)+(2*2)+(1*1)=108
108 % 10 = 8
So 108409-21-8 is a valid CAS Registry Number.
108409-21-8Relevant articles and documents
NOVEL SYNTHESES OF TRICYCLIC, N-ARYL, PYRIDINE- AND PYRAZINE-FUSED PYRIMIDONES
Friary, Richard,McPhail, Andrew T.,Seidl, Vera
, p. 1133 - 1150 (1993)
2-Methylthio-2-imidazoline and 2-methylthio-1,4,5,6-tetrahydro-2-pyrimidine amidated 2-chloro-3-pyridine- and 2-chloro-3-pyrazinecarbonyl chlorides.The products reacted with aromatic amines forming a series of tricyclic, linearly fused N-aryl pyrimidones.
